「光ã€ã¯ç†±ãŒãªãã¦ã‚‚水を蒸発ã•ã›ã‚‹ã“ã¨ãŒã§ãã‚‹ã¨åˆ¤æ˜Ž - ナゾãƒã‚¸ãƒ¼
æ°´ã¯å¸¸æ¸©ã§ã‚‚蒸発ã—ã¾ã™ãŒã€ç†±ã‚’åŠ ãˆã‚‹ã“ã¨ã§ã©ã‚“ã©ã‚“蒸発é‡ã¯å¢—ãˆã¾ã™ã€‚ ã“ã‚Œã¯ã€ç†±ã‚¨ãƒãƒ«ã‚®ãƒ¼ã«ã‚ˆã£ã¦æ°´åˆ†åã®å‹•ããŒæ´»ç™ºã«ãªã‚Šã€ç©ºæ°—ã«é£›ã³å‡ºã—ã‚„ã™ããªã‚‹ãŸã‚ã§ã™ã€‚ ã“ã®ãŸã‚ã€ã“ã‚Œã¾ã§æ°´ã®è’¸ç™ºé€Ÿåº¦ã¯æ¸©åº¦ã«ä¾å˜ã™ã‚‹ã¨ã•ã‚Œã¦ãã¾ã—ãŸã€‚ ã—ã‹ã—ã€ãƒžã‚µãƒãƒ¥ãƒ¼ã‚»ãƒƒãƒ„工科大å¦ã®ã‚¬ãƒ³ãƒ»ãƒã‚§ãƒ³æ°ã‚‰ã¯ã€ç†±ã ã‘ã§ãªã光もã¾ãŸæ°´ã®è’¸ç™ºã‚’促進ã•ã›ã‚‹è¦ç´ ã§ã‚ã‚‹ã“ã¨ã‚’発見ã—ãŸã®ã§ã™ã€‚ ç ”ç©¶ã‚°ãƒ«ãƒ¼ãƒ—ã«ã‚ˆã‚‹ã¨ã€æ°´æ¸©ã‚’変ãˆãªãã¦ã‚‚光をã‚ã¦ã‚‹ã ã‘ã§è’¸ç™ºé€Ÿåº¦ãŒä¸ŠãŒã£ãŸã¨è¨€ã„ã¾ã™ã€‚ 一体光ãŒã©ã®ã‚ˆã†ã«ä½œç”¨ã—ã¦æ°´ã‚’蒸発ã•ã›ã¦ã„ã‚‹ã®ã§ã—ょã†ã‹ï¼Ÿ ã“ã®è¨˜äº‹ã§ã¯æ°´ãŒå…‰ã«ã‚ˆã£ã¦è’¸ç™ºã™ã‚‹å®Ÿé¨“ã®è©³ç´°ã¨ã€ãã®ä»•çµ„ã¿ã«ã¤ã„ã¦èª¬æ˜Žã—ã¦ã„ãã¾ã™ã€‚ ã“ã®ç ”究ã¯ç±³å›½ç§‘å¦ã‚¢ã‚«ãƒ‡ãƒŸãƒ¼ç´€è¦ã«2023å¹´10月30日付ã‘ã§æŽ²è¼‰ã•ã‚Œã¦ã„ã¾ã™ã€‚
OpenPIV - open source particle image velocimetry
OpenPIV is the community driven initiative to develop free and open-source software for Particle Image Velocimetry (PIV) image analysis and post-processing. OpenPIV is the successor of the popular URAPIV software, but it is faster, more user-friendly and much more flexible. OpenPIV exists since 1999 in several languages and multiple versions. From 2020 the main effort is devoted to the Python vers
National Committee for Fluid Mechanics Films
In 1961, Ascher Shapiro founded the National Committee for Fluid Mechanics Films (NCFMF) in cooperation with the Education Development Center and released a series of 39 videos and accompanying texts which revolutionized the teaching of fluid mechanics. MIT's iFluids program has made a number of the films from this series available on the web. (Download / Purchase information.) The preface to Illu
Online Materials Information Resource - MatWeb
Data sheets for over 180,000 metals, plastics, ceramics, and composites. MatWeb, Your Source for Materials Information What is MatWeb? MatWeb's searchable database of material properties includes data sheets of thermoplastic and thermoset polymers such as ABS, nylon, polycarbonate, polyester, polyethylene and polypropylene; metals such as aluminum, cobalt, copper, lead, magnesium, nickel, steel, s
æ°´ã®ä¸Šã®èµ°ã‚Šæ–¹ã€æ°´é³¥ã‚«ã‚¤ãƒ„ブリã®ç§˜æŠ€ãŒæ˜Žã‚‰ã‹ã«
「水上ダッシュã€ã¨å‘¼ã°ã‚Œã‚‹æ±‚愛ダンスã§æ°´ã®ä¸Šã‚’èµ°ã‚‹2ç¾½ã®ã‚¯ãƒ“ナガカイツブリ。（Photograph by Paul Souders, Corbis） デートã£ã¦å¤§å¤‰ã€ã¨æ€ã£ã¦ã„ã‚‹ãªã‚‰ã€å°‘ãªãã¨ã‚‚自分ãŒã‚«ã‚¤ãƒ„ブリã§ãªã„ã“ã¨ã‚’å–œã¼ã†ã€‚北米ã§è¦‹ã‚‰ã‚Œã‚‹ã‚¯ãƒ“ナガカイツブリã¨ã‚¯ãƒ©ãƒ¼ã‚¯ã‚«ã‚¤ãƒ„ブリã¯ã€ãƒ‘ートナーをé…了ã—ã¦é–¢ä¿‚ã‚’ç¶æŒã™ã‚‹ãŸã‚ã«ã€ã‚ªã‚¹ã‚‚メスも一緒ã«æ°´ã®ä¸Šã‚’走らãªã‘ã‚Œã°ãªã‚‰ãªã„ã®ã 。 ã“れら2種ã®ã‚«ã‚¤ãƒ„ブリã¯ã€æ˜¥ã®ç¹æ®–シーズンã®é–“「水上ダッシュã€ï¼ˆrushing）ã¨å‘¼ã°ã‚Œã‚‹è¡Œå‹•ã‚’見ã›ã‚‹ã€‚2ç¾½ã€ã‚ã‚‹ã„ã¯ãれ以上ã®é›†å›£ã§å‹•ãã‚’åˆã‚ã›ã€ç´„7秒間ã€æœ€é•·ã§20メートルも水上を疾走ã™ã‚‹ã€‚水上をæ©ã能力をæŒã¤è„Šæ¤Žå‹•ç‰©ã¨ã—ã¦ã¯æœ€å¤§ã®å½¼ã‚‰ã ãŒã€ãªãœãã‚“ãªã“ã¨ãŒå¯èƒ½ãªã®ã‹ã€è©³ã—ã観察ã—ãŸäººã¯ã“ã‚Œã¾ã§ã„ãªã‹ã£ãŸã€‚ 2種ã®ã‚«ã‚¤ãƒ„ブリãŒé‡åŠ›ã‚’ã‚‚ã®ã¨ã‚‚ã—ãªã„秘密ã¯ã€1秒間ã«æœ€é«˜20回ã«ã‚‚ã®ã¼ã‚‹é€Ÿã„æ©æ•°ã¨ã€æŒ‡ã‚’広ã’ãŸè¶³ã§æ°´é¢
「ãªãœæ°·ã®ä¸Šã¯æ»‘ã‚‹ã®ã‹ï¼Ÿã€ã¨ã„ã†å•ã„ã«å¯¾ã™ã‚‹ä¼çµ±çš„ãªé€šèª¬ãŒè¦†ã•ã‚Œã‚‹
by Chris Hau 氷上を滑り速ã•ã‚’競ã†ã‚¹ãƒ”ードスケートãªã©ã€æ°·ã®ä¸Šã§è¡Œã‚れるウインタースãƒãƒ¼ãƒ„ã¯å¤šã„ã‚‚ã®ã§ã™ã€‚ã—ã‹ã—ã€æ„外ãªã“ã¨ã«ã€Œãªãœæ°·ã®ä¸Šã§æ»‘ã‚‹ã®ã‹ï¼Ÿã€ã¨ã„ã†ãƒ¡ã‚«ãƒ‹ã‚ºãƒ 自体ã¯ã“ã‚Œã¾ã§è§£æ˜Žã•ã‚Œã¦ã„ã¾ã›ã‚“ã§ã—ãŸã€‚ã¤ã„ã«ã€ãƒžãƒƒã‚¯ã‚¹ãƒ—ランク・ãƒãƒªãƒžãƒ¼ç ”究所ã®ç ”究者ãŒå¤ãã‹ã‚‰ã®è¬Žã‚’解明ã—ã¦ã„ã¾ã™ã€‚ Molecular Insight into the Slipperiness of Ice - The Journal of Physical Chemistry Letters (ACS Publications) https://pubs.acs.org/doi/10.1021/acs.jpclett.8b01188 The slipperiness of ice explained -- ScienceDaily https://www.sciencedaily.com/release
サメ肌を飛行機ã®ç¿¼ã«ä»˜ã‘ã¦ã¿ãŸã‚‰ã™ã”ã‹ã£ãŸ
サメ肌ã®æ§‹é€ ãŒã€é£›è¡Œæ©Ÿã€é¢¨åŠ›ã‚¿ãƒ¼ãƒ“ンã€ãƒ‰ãƒãƒ¼ãƒ³ã€è‡ªå‹•è»Šã®æ€§èƒ½ã‚’å‘上ã•ã›ã‚‹å¯èƒ½æ€§ãŒã‚る。（IMAGE BY JAMES WEAVER, HAVARD UNIVERSITY） サメã¯ã€4億年以上ã«ã‚ãŸã‚‹é€²åŒ–を経ã¦ã€æ°´ä¸ã‚’高速ã§æ³³ã’るよã†ã«é©å¿œã—ã¦ããŸã€‚ãªã‹ã§ã‚‚アオザメã¯æœ€ã‚‚速ãã€çŸè·é›¢ãªã‚‰æœ€é«˜æ™‚速100kmã«ã‚‚ãªã‚‹ã€‚2ä½ã¯ãƒã‚ºãƒŸã‚¶ãƒ¡ã§æ™‚速80kmã€æœ‰åãªãƒ›ãƒ›ã‚¸ãƒã‚¶ãƒ¡ã¯3ä½ã 。（å‚考記事：「海ã®ãƒãƒ³ã‚¿ãƒ¼ã€€ãƒ›ãƒ›ã‚¸ãƒã‚¶ãƒ¡ 有åã ã‘ã©ã€è¬Žã らã‘ã€ï¼‰ サメã®çš®è†šã¯æ¥¯é±—（ã˜ã‚…んりん）ã¨å‘¼ã°ã‚Œã‚‹å°ã•ãªæ¯ã®ã‚ˆã†ãªã‚¦ãƒã‚³ã«è¦†ã‚ã‚Œã¦ã„る。1980年代ã«ã“ã®æ§‹é€ ãŒè¦‹ã¤ã‹ã£ã¦ä»¥æ¥ã€ç©ºæ°—力å¦çš„ãªç ”究ãŒè¡Œã‚ã‚Œã¦ããŸãŒã€æ°´ã®æŠµæŠ—（抗力）を減らã™åŠ¹æžœã«ã¤ã„ã¦ç ”究者ã®æ„見ã¯åˆ†ã‹ã‚Œã¦ã„ãŸã€‚ãã“ã§ä»Šå›žã€ç±³ãƒãƒ¼ãƒãƒ¼ãƒ‰å¤§å¦ã®é€²åŒ–生物å¦è€…ã¨å·¥å¦è€…ã®ãƒãƒ¼ãƒ ãŒè©³ç´°ãªç ”究を行ã£ãŸã€‚ å¦è¡“誌『Journal of the Royal Socie
リリースã€éšœå®³æƒ…å ±ãªã©ã®ã‚µãƒ¼ãƒ“スã®ãŠçŸ¥ã‚‰ã›
最新ã®äººæ°—エントリーã®é…ä¿¡
j次ã®ãƒ–ックマーク
kå‰ã®ãƒ–ックマーク
lã‚ã¨ã§èªã‚€
eコメント一覧を開ã
oページを開ã
Vortex street and Reynolds number
防ç½æ°´ç† - ç ”ç©¶å†…å®¹
Single-point vibrometers - Laser Doppler vibrometers
Roughness database
fluids, eco & evo
Tsevi Beatus | Micro-Flight Laboratory | Research
TSI Homepage!
Ling's Homepage
http://aero.me.tut.ac.jp/Lectures/Turbulence/turb00.pdf
Vertically migrating swimmers generate aggregation-scale eddies in a stratified column - Nature
Workshop on Marine-Earth Science Simulations: Micro- and mesoscale renewable energy harvesting
https://www.royalsocietypublishing.org/doi/10.1098/rsos.170467
High postural costs and anaerobic metabolism during swimming support the hypothesis of a U-shaped metabolism–speed curve in fishes
{{#tags}}- {{label}}
{{/tags}}